progressBar1.Maximum = 100;//设置最大长度值
progressBar1.Value = 0;//设置当前值
progressBar1.Step = 5;//设置没次增加多少
for (int i = 0; i < 16; i++)//循环
{
System.Threading.Thread.Sleep(1000);//暂停1秒
progressBar1.Value += progressBar1.Step;//让进度条增长一次
}循环